40544023 has 8 divisors (see below), whose sum is σ = 43717968. Its totient is φ = 37377984.

The previous prime is 40544017. The next prime is 40544027. The reversal of 40544023 is 32044504.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40544023 - 2⁵ = 40543991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40543985 and 40544003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40544027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12840 + ... + 15682.

It is an arithmetic number, because the mean of its divisors is an integer number (5464746).

Almost surely, 2^40544023 is an apocalyptic number.

40544023 is a deficient number, since it is larger than the sum of its proper divisors (3173945).

40544023 is a wasteful number, since it uses less digits than its factorization.

40544023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3953.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 40544023 is about 6367.4188648148. The cubic root of 40544023 is about 343.5386567339.

Adding to 40544023 its reverse (32044504), we get a palindrome (72588527).

The spelling of 40544023 in words is "forty million, five hundred forty-four thousand, twenty-three".